ICND1 - Part 4 Quiz

Question 1

You should generally plan a subnet for every: (Choose 3)

a. Device
b. VLAN
c. Switch
d. Point-to-Point serial link
e. Ethernet emulation WAN link
f. VoIP phone

Answer 1

b. VLAN
d. Point-to-Point serial link
e. Ethernet emulation WAN link

Question 2

In every subnet, we have one network and one broadcast address, effectively removing two IP addresses as usable.

a. True
b. False

Answer 2

a. True

Question 3

IPv6 is:

a. 64 bit
b. 32 bit
c. 120 bit
d. 90 bit
e. 100 bit
f. 128 bit

Answer 3

f. 128 bit

Question 4

NAT permits public IPs to route across the public internet.

a. True
b. False

Answer 4

b. False

Question 5

172.33.0.0 is a private address.

a. True
b. False

Answer 5

b. False

Question 6

192.168.0.0 is a class B private address.

a. True
b. False

Answer 6

b. False

Question 7

Which of the following is a valid Class A network range?

a. 0-125
b. 1-127
c. 1-126
d. 192-223
e. 128-191

Answer 7

c. 1-126

Question 8

What is the default mask for a Class B address?

a. 255.0.0.0
b. 255.255.255.0
c. 255.255.0.0
d. 255.255.255.255

Answer 8

c. 255.255.0.0

Question 9

What is the decimal value of 11011001?

a. 217
b. 128
c. 255
d. 200

Answer 9

a. 217

Question 10

A CIDR of /25 has how many available hosts per subnet?

a. 24
b. 128
c. 62
d. 126
e. 64
f. 30
g. 32

Answer 10

d. 126

Question 11

A subnet contains a set of consecutive numbers.

a. True
b. False

Answer 11

a. True

Question 12

All broadcast addresses are even numbers.

a. True
b. False

Answer 12

b. False

Question 13

How many subnets are available in 172.16.0.0 /26 assuming a classless mask of a /24?

a. 1
b. 2
c. 3
d. 4
e. 8
f. 12
g. 16

Answer 13

d. 4

Question 14

A requirement to have 128 hosts has been given, which CIDR is appropriate and does not waste IP addresses?

a. /24
b. /25
c. /16
d. /8
e. /26
f. /22

Answer 14

a. /24